US4450545A - Voice responsive door lock system for a motor vehicle - Google Patents

Voice responsive door lock system for a motor vehicle Download PDF

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Publication number
US4450545A
US4450545A US06/356,481 US35648182A US4450545A US 4450545 A US4450545 A US 4450545A US 35648182 A US35648182 A US 35648182A US 4450545 A US4450545 A US 4450545A
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United States
Prior art keywords
signal
door lock
door
indication
producing
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Expired - Fee Related
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US06/356,481
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English (en)
Inventor
Norimasa Kishi
Kazunori Noso
Yasuhisa Takeuchi
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Nissan Motor Co Ltd
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Nissan Motor Co Ltd
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Assigned to NISSAN MOTOR CO. LTD. reassignment NISSAN MOTOR CO. LTD. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: KISHI, NORIMASA, NOSO, KAZUNORI, TAKEUCHI, YASUHISA
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    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C9/00563—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys using personal physical data of the operator, e.g. finger prints, retinal images, voicepatterns

Definitions

  • an automatic door lock system wherein the setting of switches and like can be obviated and which eliminates the risk of forgetting to lock the car or locking the keys in the car.
  • An object of the present invention is therefore to provide an automatic door lock system in which the locking device is actuated in accordance with a vocal command by the driver (for example) which command is identified by utilizing a voice recognition unit.
  • the voice responsive door lock system comprises a door position detection means, an indication means for indicating a question as to the necessity of locking the door, a voice recognition unit for identifying the driver's reply and producing the lock command signal, and a door lock control means for operating a door lock device.
  • FIG. 1 is a block diagram of a preferred embodiment of the voice responsive door lock system according to the present invention
  • FIG. 2 is a first modification of the voice responsive door lock system shown in FIG. 1;
  • FIGS. 3A and 3B are the block diagram of a second modification of the voice responsive door lock system shown in FIG. 1;
  • FIG. 4 is a third modification of the voice responsive door lock system shown in FIG. 1.
  • the voice responsive door lock system comprises a status detection circuit 2 which senses that the door is opened and the vehicle is at standstill, a voice synthesizer circuit 5, voice recognition circuit 6, a timer circuit 7, and a door lock control circuit 8, each respectively enclosed by dashed chain lines.
  • the status detection circuit 2 comprises an ignition switch position detector including regulators 22 and 23 which are connected to the "ACC" (accessory) contact and the “ON” contact of an ignition switch 21 respectively and produce a high level TTL (Transistor Transistor Logic) signal when a high level input volage is applied thereto and produces a low level TTL signal when no input signal is applied thereto, a NOR circuit 24, trigger circuits 25 and 27 which define a differentiator circuit, an inverter 28, a latch circuit 26 which takes the form of a RS flip-flop and a buffer circuit 36.
  • TTL Transistor Transistor Logic
  • the status detection circuit 2 also comprises a door position detector including a door switch 31 which turns-on to produce a low level (approximately zero volt) output signal when the door is opened and turns off to produce a high level output signal (approximately equal to the voltage of the battery 1) when the door is closed, an inverter 32 connected to the door switch 31, trigger circuits 33 and 34 connected to the door switch 31 and the inverter 32 respectively and which define a differentiator circuit, and a latch circuit 35 which takes the form of a RS flip-flop.
  • the status detection circuit 2 is further provided with an AND gate 4 which receives the output signal of the ignition switch position detection circuit and the door position detector, so that a door open detection signal is produced only when the door is open and the ignition switch 21 is turned-off.
  • the voice synthesizer circuit 5 includes a voice synthesizer unit 51 and a speaker 52 connected thereto.
  • the voice recognition circuit 6 includes a microphone 62 and a voice recognition unit 61 for discriminating among preselected words registered in the memory thereof (by the driver, for example) inputted in the form of various input signals from the microphone 62.
  • the door lock control unit 8 includes a latch circuit 81 which takes the form of a RS flip-flop, an AND gate 82, a buffer circuit 83, a relay drive transistor 84, a relay 85 for controlling the drive current of a door lock device (not shown), and a delay circuit 86.
  • regulators 22 and 23 produce a high level TTL signal when the battery voltage is applied thereto.
  • the regulator 23 produces a high level TTL signal when the movable contact C of the ignition switch 21 is switched to the "ON, START" contact and produces a low level TTL signal when the movable contact C is turned to the other positions.
  • the regulator 23 produces the high level TTL signal when the movable contact C is switched to the "ACC" contact A, and produces the low level TTL signal when the movable contact C is turned to the other positions.
  • the NOR circuit 24 which receives the output signals of regulators 22 and 23, produces the high level signal when both of two input thereof are applied with the low level signal, in the other words, the ignition switch 21 is turned to the "OFF or LOCKED” position and produces the low level signal when the high level signal is applied from at least one of the regulators 22 and 23, in the other words, the ignition switch 21 is turned to the "ON, START" position or the "ACC" position.
  • the trigger circuit 25 connected to this NOR circuit 24 is adapted to sence the rising edge of the output signal of the NOR circuit 24 applys the high level trigger signal to the set input of the RS flip-flop.
  • a high level trigger signal is applied to the set input S of the latch circuit 26.
  • the latch circuit 26 produces the high level signal at the output terminal Q thereof, i.e., on the line 100 until a reset signal is applied to the reset input R thereof.
  • the output signal of the NOR circuit 24 is also applied to the trigger circuit 27 via the inverter circuit 28. Therefore, when the output signal of the NOR circuit 24 turns from the high level to the low level, the trigger circuit 27 produces a high level trigger signal and applys the same to the reset input R of the latch circuit 26. In other words, when the movable contact C of the ignition switch 21 is returned to the "ACC" position B from the "OFF” position, the output level of the latch circuit 26 is turned to the low level, thus preventing the production of the high level output signal if the ignition switch 21 is turned to the positions other than the "OFF, LOCKED" position.
  • the door switch 31 turns off to produce the high level output signal when the door is closed. Therefore, the trigger circuit 33 receives the low level signal when the door is closed and receives the high level signal when the door opens.
  • the output trigger signal of the trigger circuit 33 which develops when the door opens, is applied to a set input S of the latch circuit 35.
  • the output signal of the door switch 31 is also directly applied to the trigger circuit 34 which produces an output trigger signal when the door closes and applys the same to a reset input R of the latch circuit 35.
  • the output Q of the latch circuit 35 i.e., the line 101 is held at the high level when the door is opened and held at the low level when the door is closed.
  • the output Q of the latch circuit 35 i.e., line 102 is held at the high level when the door is closed and held at the low level when the door opens.
  • the signal on the lines 100 and 101 are applied to the AND gate 4 and the high level output signal (door lock signal) of the AND gate 4 represents the condition that the door is opened and the ignition switch 21 is switched to the "OFF" position at the same time.
  • door switch 31 is preferably disposed on the door on the driver's side.
  • a vehicle speed signal which can also indicate that the vehicle is at standstill may be used to produce the door lock signal (the high level output signal of the AND gate 4).
  • the signal on the line 103 is applied to the reset input R of the latch circuit 26 via the buffer circuit 36.
  • the voice synthesizer unit 51 of the voice synthesizer circuit 5 produces an audio signal corresponding to the oral question as to the necessity of locking the door.
  • the speaker voices a question such as, "Do you wish the doors locked?".
  • a voice recognition start signal generated by the voice synthesizer unit 51 is applied to the voice recognition unit 61 of the voice recognition circuit 6 and to the timer circuit 7.
  • a visual display such as a light emitting diode can be used for giving the notice of the start of the voice recognition to the driver.
  • the voice recognition circuit 6 starts its opeation in accordance with the voice recognition start signal from the voice synthesizer unit 51.
  • the voice recognition unit 61 When the driver utters the reply, the voice recognition unit 61 receives the audio output signal from the microphone 62 and discriminating predetermined registered words to make judgement whether or not the door should be locked. If the answer is YES, the voice recognition unit 61 produces the high level output signal and transmits the same into the door lock control circuit 8.
  • the microphone 62 is preferably disposed at the center of the steering wheel or on the instrumental panel to sense the driver's voice.
  • the words to be registered in the voice recognition unit 61 is selected such as “Yoshi” (Janese) or “OK” for the affirmative answer, and “Dame” (Japanese: pronounced “dahmeh” in Japan) or “No” for the negative answer.
  • the voice recognition unit 61 is preferably adapted to respond to the whole syllable of each word, or respond to the consonant sound of the specified word, such as "shi” contained in the word “Yoshi”, or adapted to respond to the volwel sound of the specified word, such as "ah” contained in the word "Dame”.
  • the timer circuit 7 upon receiving the voice recognition start signal from the voice synthesizer unit 51, produces a stop signal on lines 104 and 105 after the elaps of a predetermined time period and transmits the same to the voice recognition unit 61, and to the door lock control circuit 8 respectively.
  • the voice recognition unit 61 upon receiving the stop signal from the timer circuit 7, inhibits the input audio signal from the microphone 62, and terminates its voice recognition operation.
  • the voice recognition unit 61 determines that the door should not be locked. Thus, eliminating a possible undesirable operation of the system such as in the case when the driver leaves the vehicle for a very short period of time, for example.
  • the latch circuit 81 which takes the form of a RS flip-flop, produces the high level output signal at the output terminal Q thereof upon receiving the door lock signal from the voice recognition unit 61 at a set input S thereof.
  • the AND gate 82 which receives the output signal of the latch circuit 81 and the signal on the line 102, produces a high level output signal when both of input signals are high, viz., when the door is closed and the high level output signal (which indicates that the door should be locked) is produced by the voice recognition unit 61.
  • the output signal of the AND gate 82 developed on the line 105 is applied to the base of the relay drive transistor 84 through the buffer amplifier 83.
  • the relay drive transistor 84 when the high level signal is applied to the base thereof, becomes conductive to drive the relay 85 and the door lock devices disposed on all of the doors of the vehicle are actuated. In this way, when the door is closed after the affirmative answer of the driver such as "OK" is identified by the voice recognition unit 61, the door lock devices are automatically operated.
  • the signal on the line 105 is applied through the delay circuit 86 into the reset input R of the latch circuit 81.
  • the delay circuit 86 is provided for establishing the delay time corresponding to the operational time of the relay 85, so that the door lock operation is safely performed within this time duration.
  • the system may be constructed such that the voice synthesizer unit 51 produces the audio signal that "the doors will be locked", in response to the high level output signal of the the voice recognition unit 61 on the line 106.
  • the door lock operation is previously recognized by the passenger of the vehicle.
  • FIGS. 2 to 4 of the accompanying drawing in which various modification of the automatic door lock system shown in FIG. 1 are illustrated.
  • FIG. 2 shows a block diagram of a first modification of the present invention in which only those portions which are different from FIG. 1 are illustrated.
  • This modification features that the opening and closing of the windows are detected by means of a sensor 10 which produces the low level signal when all of the windows of the vehicle are closed, and produces the high level signal when at least one of the windows are opened.
  • the output signal of this sensor switch 10 on the line 107 and the door lock signal from the status detection circuit 2 on the line 103 are applied to an AND gate 11, and the output signal of the AND gate 11 on the line 108 is applied to the voice synthesizer unit 51 which is adapted to produce the warning that "please close the window" upon receiving the signal on the line 108.
  • the output signal of the sensor switch 10, through an inverter 12, and the door lock signal from the status detection circuit 2 on the line 103 are applied to an AND gate 13 whose low level output signal is used for inhibitting the operation of the voice synthesizer unit 51, viz., the voice synthesizer unit 51 is disabled when the low level signal is applied thereto. Therefore, normal questions as to whether or not the doors should be locked or not are not issued until the output level of the AND gate 13 turns high when the window is closed.
  • FIGS. 3A and 3B show another modification of the present invention.
  • This modification features the provision of an automatic power supply control circuit.
  • the system is constructed to be continuously supplied with the power current from the battery so that the system is operable even if the ignition switch is turned off.
  • the electric power supply from the battery is automatically stopped when the operation of the system is not required, in order to prevent the discharge of energy of the battery when the vehicle is parked, or from a view point of the safety (for the purpose of preventing fire etc.).
  • FIG. 3A An example of an automatic power shut off circuit is illustrated in FIG. 3A.
  • a drive circuit 16 of a power current control relay 15 receives the output signal from the delay circuit 86 which indicates the termination of the energization of the door lock relay 85, and the signal on the line 104, i.e., the signal from the timer circuit 7 which inhibits the door lock operation during a predetermined time after the voice recognition is executed.
  • the relay 15 controls the power current of the present system, i.e., the voice synthesizer circuit 5, the voice recognition circuit 6, timer circuit 7, the door lock control unit 8.
  • the drive circuit 16 comprises a timer circuit 16a which produces a square pulse signal having a sufficient duration when a high level input signal is applied thereto, and a transistor 16b which becomes conductive by the output signal of the timer circuit 16a, to energize the relay 15.
  • the power current control relay is energized when the voice synthesizer unit 51 receives the signal for initiating its operation.
  • FIG. 4 a modification of the present system is explained.
  • This modification features that a delay circuit 19 is provided between the voice synthesizer circuit 5 and the line 103.
  • this delay circuit 19 the voice synthesizer unit is prevented from operating immediately after the opening of the door. Therefore, the voicing of question is eliminated in such a case that the door is opened for a very short time, when the driver or the passenger has recognized that the door lock is only half engaged, viz., the door lock is engaged on the first stage with the door still slightly ajar.
  • the detection of the standstill condition of the vehicle may be effected by sensing that the ignition key is taken out from the key cylinder or utilizing an output signal of a known type alarm device for the prevention of locking the key in the car.

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  • General Physics & Mathematics (AREA)
  • Lock And Its Accessories (AREA)
US06/356,481 1981-03-11 1982-03-09 Voice responsive door lock system for a motor vehicle Expired - Fee Related US4450545A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP56-33999 1981-03-11
JP3399981A JPS57151773A (en) 1981-03-11 1981-03-11 Automatic door lock apparatus

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US4450545A true US4450545A (en) 1984-05-22

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US (1) US4450545A (fr)
EP (1) EP0059985B1 (fr)
JP (1) JPS57151773A (fr)
DE (1) DE3266984D1 (fr)

Cited By (52)

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US4501012A (en) * 1980-11-17 1985-02-19 Nissan Motor Company, Limited Speech recognition system for an automotive vehicle
US4602256A (en) * 1983-02-14 1986-07-22 Nippon Soken, Inc. Luggage door unlocking device for a vehicle
US4637045A (en) * 1981-10-22 1987-01-13 Nissan Motor Company Speech recognition system for an automotive vehicle
US4797924A (en) * 1985-10-25 1989-01-10 Nartron Corporation Vehicle voice recognition method and apparatus
US4800293A (en) * 1987-04-16 1989-01-24 Miller Robert E Infrasonic switch
US4827520A (en) * 1987-01-16 1989-05-02 Prince Corporation Voice actuated control system for use in a vehicle
US4856072A (en) * 1986-12-31 1989-08-08 Dana Corporation Voice actuated vehicle security system
US4862363A (en) * 1987-12-16 1989-08-29 Dana Corporation Voice actuated two speed axle
US4887078A (en) * 1988-05-05 1989-12-12 Jim Cho DTMF-Code controlled lock device
US4912388A (en) * 1985-08-02 1990-03-27 Canon Kabushiki Kaisha Drive control device operating a drive mechanism
US4942393A (en) * 1988-05-27 1990-07-17 Lectron Products, Inc. Passive keyless entry system
US5265191A (en) * 1991-09-17 1993-11-23 At&T Bell Laboratories Technique for voice-based security systems
US5459957A (en) * 1994-06-09 1995-10-24 Winer; Guy T. Gun security and safety system
US5774858A (en) * 1995-10-23 1998-06-30 Taubkin; Vladimir L. Speech analysis method of protecting a vehicle from unauthorized accessing and controlling
US5777546A (en) * 1996-02-08 1998-07-07 Chrysler Corporation Method of selection of deselection of automatic power door locks
US5801616A (en) * 1996-01-04 1998-09-01 George Seelman Voice actuated vehicle security system with starting system interlock and automatic arming feature
US5812067A (en) * 1994-05-10 1998-09-22 Volkswagen Ag System for recognizing authorization to use a vehicle
US5832440A (en) * 1996-06-10 1998-11-03 Dace Technology Trolling motor with remote-control system having both voice--command and manual modes
US5924070A (en) * 1997-06-06 1999-07-13 International Business Machines Corporation Corporate voice dialing with shared directories
US5990579A (en) * 1998-04-03 1999-11-23 Ricci; Russell L. Remote controlled door strike plate
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US20020077830A1 (en) * 2000-12-19 2002-06-20 Nokia Corporation Method for activating context sensitive speech recognition in a terminal
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Cited By (77)

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Publication number Priority date Publication date Assignee Title
US4501012A (en) * 1980-11-17 1985-02-19 Nissan Motor Company, Limited Speech recognition system for an automotive vehicle
US4637045A (en) * 1981-10-22 1987-01-13 Nissan Motor Company Speech recognition system for an automotive vehicle
US4602256A (en) * 1983-02-14 1986-07-22 Nippon Soken, Inc. Luggage door unlocking device for a vehicle
US4912388A (en) * 1985-08-02 1990-03-27 Canon Kabushiki Kaisha Drive control device operating a drive mechanism
US4797924A (en) * 1985-10-25 1989-01-10 Nartron Corporation Vehicle voice recognition method and apparatus
US4856072A (en) * 1986-12-31 1989-08-08 Dana Corporation Voice actuated vehicle security system
US4827520A (en) * 1987-01-16 1989-05-02 Prince Corporation Voice actuated control system for use in a vehicle
US4800293A (en) * 1987-04-16 1989-01-24 Miller Robert E Infrasonic switch
US4862363A (en) * 1987-12-16 1989-08-29 Dana Corporation Voice actuated two speed axle
US4887078A (en) * 1988-05-05 1989-12-12 Jim Cho DTMF-Code controlled lock device
US4942393A (en) * 1988-05-27 1990-07-17 Lectron Products, Inc. Passive keyless entry system
US5265191A (en) * 1991-09-17 1993-11-23 At&T Bell Laboratories Technique for voice-based security systems
US5812067A (en) * 1994-05-10 1998-09-22 Volkswagen Ag System for recognizing authorization to use a vehicle
US5459957A (en) * 1994-06-09 1995-10-24 Winer; Guy T. Gun security and safety system
US5774858A (en) * 1995-10-23 1998-06-30 Taubkin; Vladimir L. Speech analysis method of protecting a vehicle from unauthorized accessing and controlling
US5801616A (en) * 1996-01-04 1998-09-01 George Seelman Voice actuated vehicle security system with starting system interlock and automatic arming feature
US6073101A (en) * 1996-02-02 2000-06-06 International Business Machines Corporation Text independent speaker recognition for transparent command ambiguity resolution and continuous access control
US6477500B2 (en) 1996-02-02 2002-11-05 International Business Machines Corporation Text independent speaker recognition with simultaneous speech recognition for transparent command ambiguity resolution and continuous access control
US5777546A (en) * 1996-02-08 1998-07-07 Chrysler Corporation Method of selection of deselection of automatic power door locks
US5832440A (en) * 1996-06-10 1998-11-03 Dace Technology Trolling motor with remote-control system having both voice--command and manual modes
DE19822989C2 (de) * 1997-05-21 2002-06-06 Trw Inc Schlüsselloses Fahrzeug-Einlaß-System unter Verwendung von Sprach-Signalen
US5924070A (en) * 1997-06-06 1999-07-13 International Business Machines Corporation Corporate voice dialing with shared directories
US6529871B1 (en) 1997-06-11 2003-03-04 International Business Machines Corporation Apparatus and method for speaker verification/identification/classification employing non-acoustic and/or acoustic models and databases
US5990579A (en) * 1998-04-03 1999-11-23 Ricci; Russell L. Remote controlled door strike plate
EP1095527A1 (fr) * 1998-05-11 2001-05-02 Gerhard Walter Systeme de securite a clef unique
EP1095527A4 (fr) * 1998-05-11 2004-06-02 Gerhard Walter Systeme de securite a clef unique
US7349722B2 (en) 1999-05-26 2008-03-25 Johnson Controls Technology Company Wireless communications system and method
US20090082928A1 (en) * 1999-05-26 2009-03-26 Johnson Controls Technology Company Wireless communications system and method
US20040048622A1 (en) * 1999-05-26 2004-03-11 Johnson Controls Technology Company System and method for radio frequency communication with a personal digital assistant in a vehicle
US20080161047A1 (en) * 1999-05-26 2008-07-03 Johnson Controls Technology Company System and method for radio frequency communication with a personal digital assistant in a vehicle
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JPS57151773A (en) 1982-09-18
EP0059985B1 (fr) 1985-10-23
EP0059985A1 (fr) 1982-09-15
DE3266984D1 (en) 1985-11-28

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